ABRY Partners has sold an 86.7% stake in e-shelter to NTT Communications, the ICT solutions and international communications business within NTT (NYSE: NTT). The transaction has been reportedly valued at $840 million. Founded in 2000, e-shelter is a designer, builder and operator of high-availability data centers, currently operating over 70,000 square meters of server room space. The acquisition elevates the NTT Communications' data center space in Europe to 92,000 sqm in nine cities, up from 19,500 sqm in four cities. ABRY initially backed the company in 2011.